I make a bet with you : those retro controls will not become a mainstream trend.

Otherwise, it would mean cameras designers have done wrong for more than 30 years!

Not necessarily. It means that some users prefer manual or retro controls. It may also mean that more and more features are showing up in cameras, and that menu systems may have become cumbersome for some users. Some are returning to fundamentals. I grew up with the modern camera and still prefer the Fuji's manual dials and rings. In other words, it's progressive for some, not retro.